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Preparation and application of a novel magnetic anion exchange resin for selective nitrate removal

Authors
Journal
Chinese Chemical Letters
1001-8417
Publisher
Elsevier
Volume
23
Issue
7
Identifiers
DOI: 10.1016/j.cclet.2012.05.010
Keywords
  • Magnetic Resin
  • Miex
  • Nitrate
  • Selective Removal
  • Adsorption
  • Anion Exchange

Abstract

Abstract A novel magnetic anion exchange resin NDM-1 was prepared through suspension polymerization and then functionalized with ammonolysis and alkylating agents. Its application for selective removal of nitrate was performed in comparison with MIEX®. The results demonstrated that NDM-1 achieved higher efficiency in nitrate removal than MIEX® did, with or without the existence of competing anion SO42− ascribed to its longer alkyl chains on exchange sites. Combined with the advantage of easy separation due to γ-Fe2O3 implanted, the magnetic anion exchange resin NDM-1 was considered to be superior to MIEX® for nitrate removal in practical application.

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